exam
Maths Puzzle
Numerical Ability
Determine wether the lines through the pairs of points are parallel,perpendiular, or neither.
12x+4y = 16
27x+9y = 40
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exam Other Question
this is trig identities, if you could please help me prove the following identity true
sin2x / 1-cos2x = 2csc2x-tan
i hope this reads clearly
the left side of the equation is sin2x over 1-cos2x
Compute the dimension of span {v1,v2,v3} where
v1= 1 v2= 2 v3= 3
4 5 6
7 8 9